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Solutions Signal Conditioning Operational Amplifiers (Op Amps) Precision Amplifiers (Vos < 0.75mV)
Solutions Sensor and Transducer Solutions Temperature Sensors Resistive Thermal Device (RTD)

Single Supply Current Source for Platinum RTD

Single Supply Current Source for Platinum RTD

The LT1800's Precision and low bias input stage is used to good advantage in Fig. 5 Single Supply Current Source for Platinum RTD circuit. R4 and C1 stabilize the circuit making it insensitive to cable characteristics. Output is 1.00V at 0ºC and its gain factor is 3.85mV/ºC.

 

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